Home / 1,585,868.72-2,188,519.80-860,725.12

Finding the Fourth Proportional to 1,585,868.72, 2,188,519.80 and 860,725.12

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Solution

The fourth proportional to 1,585,868.72, 2,188,519.80 and 860,725.12 is: 1,187,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,868.72 : 2,188,519.80 = 860,725.12 : x
  2. Step 2: Convert to fraction form
    1,585,868.72/2,188,519.80 = 860,725.12/x
  3. Step 3: Cross multiply
    1,585,868.72x = 2,188,519.80 × 860,725.12
  4. Step 4: Simplify right side
    1,585,868.72x = 1,883,713,967,477.38
  5. Step 5: Solve for x
    x = 1,883,713,967,477.38/1,585,868.72
  6. Step 6: Final answer
    x = 1,187,812.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.